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Finding the Fourth Proportional to 362,786.79, 544,185.69 and 138,159.66

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Solution

The fourth proportional to 362,786.79, 544,185.69 and 138,159.66 is: 207,241.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,786.79 : 544,185.69 = 138,159.66 : x
  2. Step 2: Convert to fraction form
    362,786.79/544,185.69 = 138,159.66/x
  3. Step 3: Cross multiply
    362,786.79x = 544,185.69 × 138,159.66
  4. Step 4: Simplify right side
    362,786.79x = 75,184,509,907.27
  5. Step 5: Solve for x
    x = 75,184,509,907.27/362,786.79
  6. Step 6: Final answer
    x = 207,241.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.